3fb90b9eaa
* Correct ConfigureNotify events sent to fullscreen windows. * Exit fullscreen mode before switching workspace. * Temporarily treat `xcb:Atom:_NET_WM_STATE_ABOVE` as `xcb:Atom:_NET_WM_STATE_FULLSCREEN` since a) "plugin-container" (Flash Player) seems only set this, and b) it's not normally used by applications. This makes fullscreen videos working in e.g. iceweasel.
337 lines
15 KiB
EmacsLisp
337 lines
15 KiB
EmacsLisp
;;; exwm-manage.el --- Window Management Module for -*- lexical-binding: t -*-
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;;; EXWM
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;; Copyright (C) 2015 Chris Feng
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;; Author: Chris Feng <chris.w.feng@gmail.com>
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;; Keywords: unix
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;; This file is not part of GNU Emacs.
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;; This file is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this file. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This is the fundamental module of EXWM that deals with window management.
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;;; Code:
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(require 'exwm-input)
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(defvar exwm-manage-finish-hook nil
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"Normal hook run after a window is just managed, in the context of the
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corresponding buffer.")
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(defun exwm-manage--update-geometry (id &optional force)
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"Update window geometry."
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(exwm--with-current-id id
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(unless (and exwm--geometry (not force))
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(let ((reply (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:GetGeometry :drawable id))))
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(when reply ;nil when destroyed
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(setq exwm--geometry reply))))))
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(defun exwm-manage--manage-window (id)
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"Manage window ID."
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(setq exwm-input--focus-lock t)
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(catch 'return
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;; Ensure it's not managed
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(when (assoc id exwm--id-buffer-alist)
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(throw 'return 'managed))
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;; Ensure it's alive
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(when (xcb:+request-checked+request-check exwm--connection
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(make-instance 'xcb:ChangeWindowAttributes
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:window id :value-mask xcb:CW:EventMask
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:event-mask exwm--client-event-mask))
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(throw 'return 'dead))
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(with-current-buffer (generate-new-buffer "*EXWM*")
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(push `(,id . ,(current-buffer)) exwm--id-buffer-alist)
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(exwm-mode)
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(setq exwm--id id)
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(exwm--update-window-type id)
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(exwm--update-class id)
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(exwm-manage--update-geometry id)
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;; No need to manage (please check OverrideRedirect outside)
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(when (or
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(not
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(or (not exwm-window-type)
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(memq xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY exwm-window-type)
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(memq xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG exwm-window-type)
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(memq xcb:Atom:_NET_WM_WINDOW_TYPE_NORMAL exwm-window-type)))
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;; For Java applications
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(and exwm-instance-name
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(string-prefix-p "sun-awt-X11-" exwm-instance-name)
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(not (string-suffix-p "XFramePeer" exwm-instance-name))))
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;; Remove all events
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(xcb:+request-checked+request-check exwm--connection
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(make-instance 'xcb:ChangeWindowAttributes
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:window id :value-mask xcb:CW:EventMask
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:event-mask xcb:EventMask:NoEvent))
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;; The window needs to be mapped
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(xcb:+request exwm--connection
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(make-instance xcb:MapWindow :window id))
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(with-slots (x y width height) exwm--geometry
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;; Reparent to virtual root (essential)
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(xcb:+request exwm--connection
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(make-instance 'xcb:ReparentWindow
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:window id
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:parent (frame-parameter exwm-workspace--current
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'exwm-window-id)
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:x x :y y))
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;; Center window of type _NET_WM_WINDOW_TYPE_SPLASH
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(when (memq xcb:Atom:_NET_WM_WINDOW_TYPE_SPLASH exwm-window-type)
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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:window id
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:value-mask (logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y)
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:x (/ (- (x-display-pixel-width) width) 2)
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:y (/ (- (x-display-pixel-height) height) 2)))))
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(xcb:flush exwm--connection)
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(setq kill-buffer-query-functions nil)
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(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
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(kill-buffer (current-buffer))
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(throw 'return 'ignored))
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;; Manage the window
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(xcb:+request exwm--connection ;remove border
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(make-instance 'xcb:ConfigureWindow
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:window id :value-mask xcb:ConfigWindow:BorderWidth
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:border-width 0))
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(xcb:+request exwm--connection ;grab buttons for set focus/move/resize
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(make-instance 'xcb:GrabButton
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:owner-events 0 :grab-window id
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:event-mask xcb:EventMask:ButtonPress
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:pointer-mode xcb:GrabMode:Sync
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:keyboard-mode xcb:GrabMode:Async
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:confine-to xcb:Window:None
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:cursor xcb:Cursor:None
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:button xcb:ButtonIndex:Any
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:modifiers xcb:ModMask:Any))
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(xcb:flush exwm--connection)
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(exwm--update-title id)
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(exwm--update-transient-for id)
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(exwm--update-normal-hints id)
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(exwm--update-hints id)
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(exwm--update-protocols id)
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(exwm--update-state id)
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(if (or exwm-transient-for exwm--fixed-size
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(memq xcb:Atom:_NET_WM_WINDOW_TYPE_UTILITY exwm-window-type)
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(memq xcb:Atom:_NET_WM_WINDOW_TYPE_DIALOG exwm-window-type))
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(exwm-floating--set-floating id)
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(exwm-floating--unset-floating id))
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(exwm-input-grab-keyboard id)
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(exwm-workspace--update-switch-history)
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(setq exwm-input--focus-lock nil) ;unlocked in advance
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(exwm--with-current-id id
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(run-hooks 'exwm-manage-finish-hook))))
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(setq exwm-input--focus-lock nil))
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(defun exwm-manage--unmanage-window (id &optional withdraw-only)
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"Unmanage window ID."
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(let ((buffer (exwm--id->buffer id)))
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(setq exwm--id-buffer-alist (assq-delete-all id exwm--id-buffer-alist))
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(when (buffer-live-p buffer)
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(with-current-buffer buffer
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(exwm-workspace--update-switch-history)
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;;
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(when withdraw-only
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;; Reparent back to root
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(xcb:+request exwm--connection
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(make-instance 'xcb:ChangeWindowAttributes
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:window id :value-mask xcb:CW:EventMask
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:event-mask xcb:EventMask:NoEvent))
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(let (x y geometry geometry-parent)
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(if (not exwm--floating-frame)
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(setq x 0 y 0) ;the position does not matter
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(setq geometry-parent
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(xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:GetGeometry
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:drawable
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(frame-parameter exwm--floating-frame
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'exwm-outer-id)))
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geometry (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:GetGeometry
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:drawable id)))
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(if (not (and geometry-parent geometry))
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(setq x 0 y 0) ;e.g. have been destroyed
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(setq x (+ (slot-value geometry-parent 'x)
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(slot-value geometry 'x))
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y (+ (slot-value geometry-parent 'y)
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(slot-value geometry 'y)))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:ReparentWindow
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:window id :parent exwm--root :x x :y y)))
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;; Delete WM_STATE property
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(xcb:+request exwm--connection
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(make-instance 'xcb:DeleteProperty
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:window id :property xcb:Atom:WM_STATE))
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(xcb:flush exwm--connection))
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(setq kill-buffer-query-functions nil)
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(kill-buffer)
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(select-frame-set-input-focus exwm-workspace--current)))))
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(defun exwm-manage--scan ()
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"Search for existing windows and try to manage them."
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(let* ((tree (xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:QueryTree :window exwm--root))))
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(dolist (i (slot-value tree 'children))
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(with-slots (override-redirect map-state)
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(xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:GetWindowAttributes :window i))
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(when (and (= 0 override-redirect) (= xcb:MapState:Viewable map-state))
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(exwm-manage--manage-window i))))))
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(defvar exwm-manage--ping-lock nil
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"Non-nil indicates EXWM is pinging a window.")
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(defvar exwm-manage-ping-timeout 3 "Seconds to wait before killing a client.")
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(defun exwm-manage--close-window (id &optional buffer)
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"Close window ID in a proper way."
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(catch 'return
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(unless buffer (setq buffer (exwm--id->buffer id)))
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;; Destroy the client window if it does not support WM_DELETE_WINDOW
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(unless (and (buffer-live-p buffer)
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(with-current-buffer buffer
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(memq xcb:Atom:WM_DELETE_WINDOW exwm--protocols)))
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(xcb:+request exwm--connection
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(make-instance 'xcb:DestroyWindow :window id))
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(xcb:flush exwm--connection)
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(throw 'return nil))
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;; Try to close the window with WM_DELETE_WINDOW client message
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(xcb:+request exwm--connection
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(make-instance 'xcb:icccm:SendEvent
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:destination id
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:event (xcb:marshal
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(make-instance 'xcb:icccm:WM_DELETE_WINDOW
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:window id)
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exwm--connection)))
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(xcb:flush exwm--connection)
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;; Try to determine if the client stop responding
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;; FIXME: check
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(with-current-buffer buffer
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(when (memq xcb:Atom:_NET_WM_PING exwm--protocols)
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(setq exwm-manage--ping-lock t)
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(xcb:+request exwm--connection
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(make-instance 'xcb:SendEvent
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:propagate 0 :destination id
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:event-mask xcb:EventMask:NoEvent
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:event (xcb:marshal
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(make-instance 'xcb:ewmh:_NET_WM_PING
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:window id :timestamp 0
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:client-window id)
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exwm--connection)))
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(xcb:flush exwm--connection)
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(with-timeout (exwm-manage-ping-timeout
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(if (yes-or-no-p (format "\
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`%s' is not responding. Would you like to kill it? " (buffer-name buffer)))
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(progn (exwm-manage--kill-client id)
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(throw 'return nil))
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(throw 'return nil)))
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(while (and exwm-manage--ping-lock
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(exwm--id->buffer id)) ;may have be destroyed
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(accept-process-output nil 0.1)))
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(throw 'return nil)))
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(throw 'return nil)))
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(defun exwm-manage--kill-client (&optional id)
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"Kill an X client."
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(interactive)
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(unless id (setq id (exwm--buffer->id (current-buffer))))
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(let ((pid (slot-value
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(xcb:+request-unchecked+reply exwm--connection
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(make-instance 'xcb:ewmh:get-_NET_WM_PID :window id))
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'value)))
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(if pid
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(signal-process pid 'SIGKILL)
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(xcb:+request exwm--connection
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(make-instance 'xcb:KillClient :resource id))
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(xcb:flush exwm--connection))))
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(defun exwm-manage--on-ConfigureRequest (data synthetic)
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"Handle ConfigureRequest event."
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(let ((obj (make-instance 'xcb:ConfigureRequest))
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buffer edges)
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(xcb:unmarshal obj data)
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(with-slots (window x y width height border-width) obj
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(if (setq buffer (exwm--id->buffer window))
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;; Send client message for managed windows
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(with-current-buffer buffer
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(setq edges
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(if exwm--fullscreen
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(list 0 0
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(x-display-pixel-width) (x-display-pixel-height))
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(or exwm--floating-edges
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(window-inside-absolute-pixel-edges
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(get-buffer-window)))))
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(xcb:+request exwm--connection
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(make-instance 'xcb:SendEvent
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:propagate 0 :destination window
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:event-mask xcb:EventMask:StructureNotify
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:event (xcb:marshal
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(make-instance
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'xcb:ConfigureNotify
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:event window :window window
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:above-sibling xcb:Window:None
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:x (elt edges 0) :y (elt edges 1)
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:width (- (elt edges 2) (elt edges 0))
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:height (- (elt edges 3) (elt edges 1))
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:border-width 0 :override-redirect 0)
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exwm--connection))))
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;; Configure unmanaged windows
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(xcb:+request exwm--connection
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(make-instance 'xcb:ConfigureWindow
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:window window
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:value-mask (logior xcb:ConfigWindow:X
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xcb:ConfigWindow:Y
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xcb:ConfigWindow:Width
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xcb:ConfigWindow:Height
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xcb:ConfigWindow:BorderWidth)
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:x x :y y :width width :height height
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:border-width border-width)))))
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(xcb:flush exwm--connection))
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(defun exwm-manage--on-MapRequest (data synthetic)
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"Handle MapRequest event."
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(let ((obj (make-instance 'xcb:MapRequest)))
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(xcb:unmarshal obj data)
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(exwm-manage--manage-window (slot-value obj 'window))))
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(defun exwm-manage--on-UnmapNotify (data synthetic)
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"Handle UnmapNotify event."
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(unless synthetic
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(let ((obj (make-instance 'xcb:UnmapNotify)))
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(xcb:unmarshal obj data)
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(exwm-manage--unmanage-window (slot-value obj 'window) t))))
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(defun exwm-manage--on-DestroyNotify (data synthetic)
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"Handle DestroyNotify event."
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(unless synthetic
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(let ((obj (make-instance 'xcb:DestroyNotify)))
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(xcb:unmarshal obj data)
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(exwm-manage--unmanage-window (slot-value obj 'window)))))
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(defun exwm-manage--init ()
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"Initialize manage module."
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(xcb:+event exwm--connection 'xcb:ConfigureRequest
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'exwm-manage--on-ConfigureRequest)
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(xcb:+event exwm--connection 'xcb:MapRequest 'exwm-manage--on-MapRequest)
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(xcb:+event exwm--connection 'xcb:UnmapNotify 'exwm-manage--on-UnmapNotify)
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(xcb:+event exwm--connection 'xcb:DestroyNotify
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'exwm-manage--on-DestroyNotify))
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(provide 'exwm-manage)
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;;; exwm-manage.el ends here
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